Yamaha MTN1000 2016, Service Manual

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FUEL INJECTION SYSTEM
8-37
However, the Yamaha diagnostic tool cannot be used to freely change the basic vehicle functions, such
as adjusting the ignition timing.
Connecting the Yamaha diagnostic tool
Remove the protective cap “1”, and then connect the Yamaha diagnostic tool to the coupler.
EAS31791
TROUBLESHOOTING DETAILS (FAULT CODE)
This section describes the measures per fault code number displayed on the Yamaha diagnostic tool.
Check and service the items or components that are the probable cause of the malfunction following
the order given.
After the check and service of the malfunctioning part have been completed, delete the fault codes dis-
played on the Yamaha diagnostic tool according to the reinstatement method.
Fault code No.:
Fault code number displayed on the Yamaha diagnostic tool when the engine failed to work normally.
Diagnostic code No.:
Diagnostic code number to be used when the diagnostic mode is operated. Refer to “SELF-DIAGNOS-
TIC FUNCTION AND DIAGNOSTIC CODE TABLE” on page 9-5.
Parts connected to the ECU
The following parts are connected to the ECU.
When checking for a power short circuit, the couplers must be disconnected from all of the following
parts beforehand.
Monitoring: Displays a graph of sensor output values for actual operating condi-
tions.
Logging: Records and saves the sensor output value in actual driving conditions.
CO adjustment: Adjust the concentration of CO admissions during idling.
Reprogram ECU: If necessary, the ECU is rewritten using ECU rewrite data provided by
Yamaha.
Ignition timing adjustment, etc. cannot be changed from the vehicle’s
original state.
Writing VIN/frame number: Write the VIN/frame number in the ECU.
View logs: Displays the logging data.
• Crankshaft position sensor • Intake air temperature sensor
• Fuel injector #1 • O
2
sensor 1
• Fuel injector #2 • O
2
sensor 2
•
Fuel injector #3
•
Lean angle sensor
•
Fuel injector #4
•
ABS ECU (Electronic Control Unit)
•
Ignition coil #1
•
Air induction system solenoid
•
Ignition coil #2
•
Throttle servo motor
1